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RANDGLPH R. CRAIG & JOSEPH CRAIG.

Improvement in NozzIes.

Patented April 23, i872.`

Witnesses RANDOLPH R. CRAIG AND JOSEPEI CRAIG, OF NEVADA CITY,. CALIFORNIA.

IMPROVEMENT IN NOZZLES Specification forming part of Letters Patent No. 125,884, dated April 23, 1872; antedatcd April 13, 1872.

SPECIFICATION.

To all whom it mayconcern:

Beit known that we, RANDOLPH It. CRAIG and JOSEPH CRAIG, of Nevada City, county of Nevada, State of California, have invented Improvements in Hydraulic Nozzles; and We do hereby declare the following description and accompanying dra-wing are sufficient to enable any person skilled in the art or science to which it most nearly appertains to make and use our said invention or improvements without further invention or experiment.

Our invention relates to improvements in nozzles for delivering a stream of water under hydraulic pressure; and its object is to prevent the stream from twisting, as in the case when the ordinary nozzle is used. This we accomplish by either constructing the nozzle or a portion of it with three sides, or of a triangular section, so that the body of water will be carried through it in a direct line, the angles and peculiar form of the nozzle preventing the stream from twisting.

In order to more fully illustrate and explain our invention, reference is had to the sheet ot drawing accompanying this specification, in Which- Figure l is a vertical section. end view.

A represents a hose or hydraulic nozzle, such as is used for delivering a stream of water against a bank in hydraulic mining. XVhen the ordinary nozzle is used for this purpose it is found that the efficiency of the stream is greatly impaired by the twisting of the column of water after it has left the nozzle. This is Fig. 2 is an attributable to the friction ot' the water upon the curved surface, by which a spiral motion is imparted to it in the pipe and nozzle. N ow, in order to remedy-this twisting, we construct the nozzle, either in a part or along the whole Ot' its length, with three sides, so that its section will be triangular, as shown at Fig. 2.

The ordinary round nozzle can be supplied with this form by inserting inside ot' it a threesided or triangular lining, and packing between it and the round outside pipe some suitable substance or material in order to give it strength to resist the inside pressure.

The extremity b of the nozzle can, if desired, be rounded, so that thelstream will be delivered in around solid body. By this means the water in the nozzle will be kept straight by.

the angles ofthe pipe or lining and by the peculiar form of the body when compressed in the nozzle, thus giving it greater eiiciency for the purpose mentioned and for other analogous purposes.

Having thus described our invention, what We claim, is

The hose-nozzle A, when its interior surface is consumed with three sides or of atriangular section either along the whole or a part of its length, substantially as and for the purpose above described.

In witness whereof we have hereunto set our hands and seals.

RANDOLPH R. CRAIG. JOSEPH CRAIG. YVitnesses:

L. R. SELLON, GEORGE MERRITT. 

